Existence of three periodic solutions for a nonlinear first order functional differential equation |
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| Authors: | Seshadev Padhi Shilpee Srivastava |
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| Institution: | Department of Applied Mathematics, Birla Institute of Technology, Mesra, Ranchi 835215, India |
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| Abstract: | In this paper, we use Leggett-Williams multiple fixed point theorem to obtain different sufficient conditions for the existence of at least three nonnegative periodic solutions of the first order functional differential equation of the form y′(t)=-a(t)y(t)+λf(t,y(h(t))). |
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| Keywords: | 34K 13 34C 10 34C 27 |
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